Dock insert



FIG. 1 is a top perspective view of a dock insert showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a front view thereof;

FIG. 8 is a left view thereof;

FIG. 9 is a perspective view showing the dock insert of FIG. 1 in an environment of use; and,

FIG. 10 is a top view showing the dock insert of FIG. 1 in an environment of use.

The broken lines in the Figures show portions of the dock insert which form no part of the claimed design. 

The ornamental design for a dock insert, as shown and described. 